Player Page

Roos, B (Benjamin)
Dob: 2016/04/27 (U10)
Gender: Male
Chess SA id: 1160148677
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/06/15 (11 days ago)
Ratings
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating1326.9
Current Weighted rating1273.3
Current Weighted performance1299.2
Current official/published rating (highest between Raw, WR and WP)1326.9
Current highest rating achieved1326.9
Current floor (min rating allowed)826.9
Current K-factor36
Games played this month5
Score (S)4.5
Expected score (We)2.63
Difference (S-We)1.76
Current Raw change (no limits, including tournament time weight)63.3
Current min/max change allowed (with limits)±138.4
Current Raw change used (final)63.3
Projected new Raw rating1390.2
Projected new Weighed rating1173.4
Projected new Weighted performance1417.5
Projected new final Raw rating (if new WP > new Raw)1417.5
Projected new highest rating1417.5
Projected new floor917.5
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1417.5
Projected effective change (new Official - current Official)+90.6
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating1329.4
Current Weighted rating1276.2
Current Weighted performance1299.2
Current official/published rating (highest between Raw, WR and WP)1329.4
Current highest rating achieved1329.4
Current floor (min rating allowed)829.4
Current K-factor36
Games played this month5
Score (S)4.5
Expected score (We)2.66
Difference (S-We)1.84
Current Raw change (no limits, including tournament time weight)66.2
Current min/max change allowed (with limits)±137.9
Current Raw change used (final)66.2
Projected new Raw rating1395.6
Projected new Weighed rating1176.1
Projected new Weighted performance1417.5
Projected new final Raw rating (if new WP > new Raw)1417.5
Projected new highest rating1417.5
Projected new floor917.5
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1417.5
Projected effective change (new Official - current Official)+88.1
s
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Tournament: 2024 Elise Steenkamp Open Chess Tournament (Bishops)
Start: 2024/06/15  End: 2024/06/15  Host: GTP  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 5
Games: 5  Score: 4.5
Main rating: 1326.9  Rating gain/loss: 63.3
Type rating: 1329.4  Rating gain/loss: 66.2
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
5 2024 Elise Steenkamp Open Chess Tournament (Bishops) 2024/06/15 2024/06/15 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1326.9 1329.4 Analysis
4 2024 KSNG CHess Academy Open Tournament (E) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1306.6 1304.9 Analysis
3 2024 Tshwane Chess AHS Open Chess Tournament (E) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1306.6 1307.4 Analysis
2 2024 Tshwane Chess OPEN Registration Tournament (E) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1281.8 1284.4 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U8) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1281.8 1284.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
10 2024 Elise Steenkamp Open Chess Tournament (Bishops) 2024/06/15 2024/06/15 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1326.9 1329.4 Analysis
9 2024 KSNG CHess Academy Open Tournament (E) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1306.6 1304.9 Analysis
8 2024 Tshwane Chess AHS Open Chess Tournament (E) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1306.6 1307.4 Analysis
7 2024 Tshwane Chess OPEN Registration Tournament (E) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1281.8 1284.4 Analysis
6 2024 Gauteng Inter-Region Chess Championship (U8) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1281.8 1284.4 Analysis
5 Lardies Open Tournament 2023 (F) 2023/10/28 2023/10/28 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1267.6 1276.5 Analysis
4 2023 Etienne Lewis Closed Tournament (U8) 2023/08/26 2023/08/26 Tshwane (GTP) Standard 90 0.94 6 6 4.0 1235.1 1243.0 Analysis
3 2023 Lubowski Open Tournament (F) 2023/06/24 2023/06/24 Tshwane (GTP) Standard 90 0.94 5 5 2.5 1241.9 1251.6 Analysis
2 Tuks Junior Developmental Chess Tournament 2023 (Green) 2023/03/18 2023/03/18 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1165.5 1157.2 Analysis
1 2023 Tshwane Chess Open Registration Tournament (F) 2023/01/28 2023/01/28 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 25 17 2 6 18.0 72.0 187.0 1222.4 1409.4
White 12 9 0 3 9.0 75.0 212.5 1209.4 1421.9
Black 13 8 2 3 9.0 69.2 163.5 1234.4 1397.9
Standard All 25 17 2 6 18.0 72.0 187.0 1222.4 1409.4
White 12 9 0 3 9.0 75.0 212.5 1209.4 1421.9
Black 13 8 2 3 9.0 69.2 163.5 1234.4 1397.9
Rapid All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 51 31 5 15 33.5 65.7 133.3 1219.2 1352.5
White 24 15 1 8 15.5 64.6 124.0 1211.3 1335.3
Black 27 16 4 7 18.0 66.7 141.7 1226.2 1367.8
Standard All 51 31 5 15 33.5 65.7 133.3 1219.2 1352.5
White 24 15 1 8 15.5 64.6 124.0 1211.3 1335.3
Black 27 16 4 7 18.0 66.7 141.7 1226.2 1367.8
Rapid All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1160157441 Swart, E (Eben) 3 3.0 3 0 0 100.0 1276.5 425.0 1701.5 View list
2 2160158380 Grobbelaar, M (Mari) 3 1.5 1 1 1 50.0 1261.5 0.0 1261.5 View list
3 1160147672 Rocher, G (Gideon) 3 1.0 1 0 2 33.3 1278.8 -141.7 1137.1 View list
4 2160157440 Moggee, E (Emily) 2 2.0 2 0 0 100.0 1261.8 425.0 1686.8 View list
5 2160162781 Westermann, Z (Zelri) 2 2.0 2 0 0 100.0 1316.8 425.0 1741.8 View list
6 1160157439 Lekalakala, T (Tshimologo) 2 1.0 1 0 1 50.0 1238.5 0.0 1238.5 View list
7 1160151829 Erdogan, D (Demir) 2 1.0 0 2 0 50.0 1203.7 0.0 1203.7 View list
8 1160148081 Wiehahn, L (Luke) 2 0.0 0 0 2 0.0 1270.8 -425.0 845.8 View list
9 1150190422 Li, J (Jiming) 1 1.0 1 0 0 100.0 1267.6 425.0 1692.6 View list
10 1150152739 Jansen Van Vuuren, G (Griffin) 1 1.0 1 0 0 100.0 1306.6 425.0 1731.6 View list
11 1160300016 Matjila, G (Gosiame) 1 1.0 1 0 0 100.0 1306.6 425.0 1731.6 View list
12 1160152256 Luyt, E (Erzick) 1 1.0 1 0 0 100.0 1165.5 425.0 1590.5 View list
13 1160152254 Hugo, V (Victor) 1 1.0 1 0 0 100.0 1165.5 425.0 1590.5 View list
14 2150143025 Haupt, N (Nia) 1 1.0 1 0 0 100.0 1306.6 425.0 1731.6 View list
15 1160154139 Haupt, D (Dawid) 1 1.0 1 0 0 100.0 1241.9 425.0 1666.9 View list
16 1160147138 Gresse, J (Jayden) 1 1.0 1 0 0 100.0 1281.8 425.0 1706.8 View list
17 1160153451 Fredericks, M (Matai) 1 1.0 1 0 0 100.0 1235.1 425.0 1660.1 View list
18 1150136650 Coetzee, R (Riko) 1 1.0 1 0 0 100.0 1281.8 425.0 1706.8 View list
19 1160153976 Benjamin, L (Liyabona) 1 1.0 1 0 0 100.0 1281.8 425.0 1706.8 View list
20 2150301742 Niemand, O (Olivia) 1 1.0 1 0 0 100.0 1306.6 425.0 1731.6 View list